ecvShiftedObject.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
// Local
#include "ecvHObject.h"
 
 
class CV_DB_LIB_API ccShiftedObject : public ccHObject {
public:
    ccShiftedObject(QString name = QString());
    ccShiftedObject(const ccShiftedObject& s);
 
 
    void copyGlobalShiftAndScale(const ccShiftedObject& s);
 
 
    virtual inline void setGlobalShift(double x, double y, double z) {
        return setGlobalShift(CCVector3d(x, y, z));
    }
 
 
    virtual void setGlobalShift(const CCVector3d& shift);
 
 
    virtual const CCVector3d& getGlobalShift() const { return m_globalShift; }
 
    virtual void setGlobalScale(double scale);
 
    virtual double getGlobalScale() const { return m_globalScale; }
 
    inline bool isShifted() const {
        const CCVector3d& globalShift = getGlobalShift();
        return (globalShift.x != 0 || globalShift.y != 0 ||
                globalShift.z != 0 || getGlobalScale() != 1.0);
    }
 
    template <typename T>
    inline CCVector3d toGlobal3d(const Vector3Tpl<T>& Plocal) const {
        // Pglobal = Plocal/scale - shift
        return Plocal.toDouble() / getGlobalScale() - getGlobalShift();
    }
 
    template <typename T>
    inline CCVector3d toLocal3d(const Vector3Tpl<T>& Pglobal) const {
        // Plocal = (Pglobal + shift) * scale
        return (Pglobal.toDouble() + getGlobalShift()) * getGlobalScale();
    }
    template <typename T>
    inline CCVector3 toLocal3pc(const Vector3Tpl<T>& Pglobal) const {
        CCVector3d Plocal =
                Pglobal.toDouble() * getGlobalScale() + getGlobalShift();
        return Plocal.toPC();
    }
 
    // inherited from ccHObject
    bool getOwnGlobalBB(CCVector3d& minCorner, CCVector3d& maxCorner) override;
    GlobalBoundingBox getOwnGlobalBB(bool withGLFeatures = false) override;
 
protected:
    bool saveShiftInfoToFile(QFile& out) const;
    bool loadShiftInfoFromFile(QFile& in);
 
    CCVector3d m_globalShift;
 
    double m_globalScale;
};